Đề thi Mạng MáyTính - Mạng Căn Bản pot

Chọn ít nhất một câu trả lời CRC Port # Seq # Ack # SYN ACK Question 2 Điểm : --/2 Which OSI layer addressing is required to route packets between two networks?. Chọn một phương án trả

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Đề thi Mạng Máy Tính 1.

Mạng Căn Bản.

Question 1

Điểm : /2

To send data through a network, what two flags are used to establish a session? (Choose two.)

Chọn ít nhất một câu trả lời

CRC

Port #

Seq #

Ack #

SYN

ACK

Question 2

Điểm : /2

Which OSI layer addressing is required to route packets between two networks?

Chọn một phương án trả lời

Layer 2

Layer 3

Layer 1

Layer 4

Question 3

Điểm : /2

Refer to the exhibit A PC is connected to a network Which action will verify that the PC can communicate with its default gateway?

Use the ping 10.0.0.254 command

Use the ping 127.0.0.1 command

Use the ipconfig/all command

Use the ipconfig command

Question 4

Điểm : /2

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Refer to the exhibit All routers in the network are configured with the correct IP addresses and routing protocol Host A sends a packet to host B Which exhibited steps will be executed on each of the routers in the network? Chọn một phương án trả lời

Router R1 executes all six steps Router R2 executes steps 1,2,3,4, and 6

Routers R1 and R2 execute all six steps

Router R1 executes steps 1,2,3,4, and 6 Router R2 executes all six steps

Routers R1 and R2 execute steps 1, 2, 3, 4, and 6

Question 5

Điểm : /2

Refer to the exhibit The diagram represents the process of sending e-mail between clients Which list correctly identifies the component or protocol used at each numbered stage of the diagram?

1.MUA 2.POP 3.MDA 4.SMTP 5.MTA 6.MDA 7.SMTP 8.MUA

1.MUA 2.MDA 3.MTA 4.SMTP 5.MTA 6.POP 7.MDA 8.MUA

1.MUA 2.POP 3.SMTP 4.MDA 5.MTA 6.SMTP 7.POP 8.MUA

1.MUA 2.SMTP 3.MTA 4.SMTP 5.MTA 6.MDA 7.POP 8.MUA

Question 6

Điểm : /2

Which application belongs to the category of the client/server model?

using Telnet to access a router

exchanging information via instant messaging

scanning a document with a directly connected scanner

printing a document to a locally connected printer

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Question 7

Điểm : /2

Which combination of network id and subnet mask correctly identifies all IP addresses from 172.16.128.0 through 172.16.159.255?

172.16.128.0 255.255.255.224

172.16.128.0 255.255.224.0

172.16.128.0 255.255.192.0

172.16.128.0 255.255.0.0

172.16.128.0 255.255.255.192

Question 8

Điểm : /2

Which statement is true about the ICMP protocol?

It is often filtered out of networks for security purposes

It is designed to make IP a reliable protocol

It is an application layer protocol

If a host does not respond to an ICMP echo request, the host is not functioning

Question 9

Điểm : /2

Refer to the exhibit A host is connected to hub 1 Which combination of IP address, subnet mask, and default gateway can allow this host to function in the network?

IP address: 172.16.31.63 Subnet mask: 255.255.255.224 Default gateway: 172.16.31.35

Question 10

Điểm : /2

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Refer to the exhibit Each media link is labeled What type of cable should be used to connect the different devices? Chọn một phương án trả lời

Connection 1 - straight-through cable

Connection 2 - crossover cable

Connection 2 - rollover cable

Connection 1 - rollover cable

Question 11

Điểm : /2

A network technician is tasked with setting up a network for six users, but the users should be able to use their accounts to log on from any of the six computers What type of network should be used?

P2P applications

workgroup

client-server network

peer-to-peer network

Question 12

Điểm : /2

Which two types of media can provide bandwidth up to 1 Gb/s? (Choose two.)

1000 BASE-SX

10 BASE-T

100 BASE-FX

1000 BASE-TX

100 BASE-T

Question 13

Điểm : /2

Which service is used when the nslookup command is issued on a computer?

Trang 5

DNS

FTP

DHCP

Telnet

Question 14

Điểm : /2

Refer to the exhibit A router, the table of which is shown, receives a packet that is destined for 192.168.9.4 How will the router treat the packet?

It will forward the packet via FastEthernet 0/1

It will forward the packet to the next hop address

It will forward the packet to 172.16.2.0

It will drop the packet

Question 15

Điểm : /2

During the encapsulation process, what identifiers are added at the transport layer?

source and destination IP addresses

source and destination port numbers

source and destination MAC addresses

source and destination channel identifiers

Question 16

Điểm : /3

Trang 6

Refer to the exhibit What three statements are true about the IP configuration that is shown? (Choose three.) Chọn ít nhất một câu trả lời

The network of this computer can have 126 hosts

The IP address that is assigned to the computer is routable on the Internet

The computer is unable to communicate outside of the local network

The address that is assigned to the computer represents private addressing

The prefix of the computer address is /27

The IP address that is assigned to the computer is a broadcast address

Question 17

Điểm : /2

Refer to the exhibit The tracert command is initiated from PC1 to PC4 Which device will send a response to the initial tracert packet from PC1?

PC4

Ankara

Athens

Paris

London

Question 18

Điểm : /2

An organization has been assigned network ID 10.10.128.0 and subnet mask 255.255.224.0 Which IP address range can be used for this organization?

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10.10.128.0 to 10.10.160.255

10.10.128.0 to 10.10.0.159

10.10.128.0 to 10.10.159.255

10.10.128.0 to 10.10.159.0

10.10.128.0 to 10.10.192.255

Question 19

Điểm : /2

Refer to the exhibit Which option correctly identifies the network address, range of host addresses, and the broadcast address for the network that contains host A?

chon

Question 20

Điểm : /2

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Refer to the exhibit Host A is requesting a web page from the web server Which option represents the socket to which the request is made?

10.0.0.130:80

www.cisco.com

10.0.0.130

80

Question 21

Điểm : /2

Refer to the exhibit A PC is communicating with another PC on a remote network The two networks are connected by three routers Which action will help to identify the path between the hosts?

Use the tracert command at the host

Use the ping command at the destination

Use the ipconfig command at the host

Use the ipconfig/all command at the destination

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Question 22

Điểm : /2

Refer to the exhibit Which layered network model is shown in the diagram?

TCP/IP

OSI

IETF

Cisco

Question 23

Điểm : /2

A network administrator is asked to design a new addressing scheme for a corporate network There are 60 users in the main office, 40 users in the branch office, 28 users in manufacturing, 12 in the sales office, and 4 users in the research office Which VLSM addressing scheme that uses the 192.168.88.0/24 network will fulfill the

requirements while wasting the fewest addresses?

192.168.88.0/26 main

192.168.88.64/26 branch

192.168.88.128/27 manufacturing

192.168.88.160/28 sales

192.168.88.176/29 research

192.168.88.0/27 main

192.168.88.64/28 branch

192.168.88.96/29 sales

192.168.88.104/30 research

192.168.88.0/27 main

192.168.88.32/27 branch

192.168.88.80/29 sales

192.168.88.88/30 research

192.168.88.0/26 main

192.168.88.32/26 branch

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192.168.88.96/27 sales

192.168.88.128/28 research

Question 24

Điểm : /2

Refer to the exhibit Host A is able to access resources on the local LAN but is unable to access any resources on the Internet What is the likely cause of this problem?

The host address is a network address

The network uses private addresses

The host subnet mask in incorrect

The default gateway is on a different subnet from the host

Question 25

Điểm : /2

Refer to the exhibit A network technician is trying to determine the correct IP address configuration for Host A What is a valid configuration for Host A?

IP address: 192.168.100.20; Subnet Mask: 255.255.255.240; Default Gateway: 192.168.100.17

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Question 26

Điểm : /2

Refer to the exhibit Communication for hosts X and Y is restricted to the local network What is the reason for this?

The gateway addresses are broadcast addresses

Host X is assigned a network address

Host Y is assigned a multicast address

Host X and host Y belong to different networks

Question 27

Điểm : /2

Refer to the exhibit Host A uses router A as its default gateway If host A sends an ICMP echo request to 172.16.10.0, what ICMP response will host A receive

route redirection

source quench

destination unreachable

echo reply

Question 28

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Điểm : /2

Which TCP/IP model layer creates additional overhead on network resources due to acknowledgments, tracking, and retransmission of data?

internet

application

network access

transport

Question 29

Điểm : /2

Refer to the exhibit The router of the company failed and was replaced After the replacement, hosts C and D in the Education office are able to ping each other, but they are unable to access the hosts in the Accounts office What is the likely cause of the problem?

The IP address at the serial interface of the router is incorrectly configured

The subnet mask at the fa0/1 interface of the router is incorrectly entered

The IP address at the fa0/0 interface of the router is incorrectly configured

The hosts in the Accounts office are not on the same subnet as the hosts in the Education office

Question 30

Điểm : /2

Refer to the exhibit What function does router RT_A need to provide to allow Internet access for hosts in this network?

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web server

address translation

DHCP services

ftpd

Question 31

Điểm : /2

Which option shows how a router will route packets to a remote network?

chon Question 32

Điểm : /2

Which two functions of the OSI model occur at layer two? (Choose two.)

routing

media access control

cabling

physical addressing

encoding

Question 33

Điểm : /2

Trang 14

Refer to the exhibit All devices in the network use default configurations How many broadcast domains are there

in this topology?

9

11

7

5

3

Question 34

Điểm : /2

Refer to the exhibit Assume all devices are using default configurations How many subnets are required to address the topology that is shown?

5

4

7

1

3

Question 35

Điểm : /2

Trang 15

Refer to the exhibit Host C is able to ping 127.0.0.1 successfully, but is unable to communicate with hosts A and B

in the organization What is the likely cause of the problem?

Hosts A and B are not on the same subnet as host C

The subnet mask on host C is improperly configured

The FastEthernet interface fa0/0 of router 1 is wrongly configured

The IP addresses on the router serial interfaces are wrong

Question 36

Điểm : /2

Refer to the exhibit While configuring a network, a technician wired each end of a Category 5e cable as shown Which two statements are true about this setup? (Choose two.)

The cable is unusable and must be rewired

The cable is suitable for connecting a switch to a router Ethernet port

The cable is terminated in a way that the transmit pin is wired to the receive pin

The cable simulates a point-to-point WAN link

The cable is suitable for connecting dissimilar types of devices

Question 37

Điểm : /2

What information can be gathered by using the command netstat?

active TCP connections

the locally configured subnet mask

the default gateway

the routing protocol

Question 38

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Điểm : /2

Refer to the exhibit Host A is configured with the correct IP address for the default gateway of the router R1 FastEthernet0/1 interface How will a packet that is sent from host A to host B be handled by the devices on the network?

R1 will forward the packet to its default gateway, the next hop router R2 R2 will forward the packet to the directly connected network 10.1.1.0/24

R1 will drop the packet because R1 does not have a specific route in its routing table to the 10.1.1.0/24 network R1 will forward the packet to its default gateway, the next hop router R2 R2 will drop the packet because it does not have a route that is learned by a routing protocol to network 10.1.1.0/24

R1 will forward the packet to its default gateway, the next hop router R2 R2 will drop the packet because it does not have a default route to network 10.1.1.0/24

Question 39

Điểm : /2

Which device should be used for enabling a host to communicate with another host on a different network?

hub

router

host

switch

Question 40

Điểm : /2

Trang 17

Refer to the exhibit Which list refers only to end devices?

A,H,B,C

A,D,E,G

A,D,E,F

D,E,F,G

Question 41

Điểm : /2

Refer to the exhibit Which type of network design is shown?

client/server

peer-to-peer

wide area

dedicated server

Question 42

Điểm : /2

What information is contained in the header of Layer 3 to help data delivery? Chọn một phương án trả lời

port number

destination host logical address

device physical address

virtual connection identifier

Question 43

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